Can the gateway send and receive SMS?

Yes, it supports SMS sending, batch SMS sending, receiving, and USSD balance inquiry.

What are the power supply requirements?

It requires AC100~240V 50/60HZ or DC12V/2A power supply, with a power consumption of 24W.

What is the warranty period for this product?

The product comes with a 1-year warranty.

4G VoIP Gateway 32 Ports 256 Sims SIP Control for Voice Calling

Name: 4G VoIP Gateway 32 Ports 256 Sims SIP Control for Voice Calling
Brand: Shenzhen Etross Telecom Co., Ltd.
SKU: 1939657231

Guangdong, ChinaShenzhen Etross Telecom Co., Ltd.

US$2,250.00

1-99 Pieces

US$2,000.00

100+ Pieces

Sample price:US$2250.00/piece.Request sample

Product profile

Customization

Available

Type

Gateway

Color

Black

Model NO.

4G VOIP Gateway 32 ports 256 sims

Warranty

1 Year

Model Name

VoIP Gateway

Network

4G / GSM Support

Port Number

SIM Card Slots

256

Firmware Update

HTTP/TFTP

Ussd

Support

Human Behaviour

Support

Calling Type

Terminate/Originate Calls

Switch Bandwidth Optimization(Sbo)

Support

Dtmf & Tts & Ivr

Support

Transport Package

Carton Box

Specification

4G VOIP Gateway 32 ports 256 sims

Trademark

OEM/Etross

Origin

Shenzhen, China

HS Code

8517623400

Production Capacity

500000 PCS/Year

Key features

High Capacity SIM Support: Supports up to 256 SIM cards with 32 ports for extensive connectivity.

4G & GSM Dual Network: Features built-in 4G module and GSM support for flexible network options.

Advanced Call Optimization: Includes SBO, BTS rotation, and human behavior functions to prevent blocking.

Comprehensive Web Management: User-friendly HTTP web interface for configuration, upgrade, and CDR management.

Multi-Codec Voice Support: Supports G.711, G.723.1, G.726, and G.729AB for high-quality voice calls.

SMS & USSD Functionality: Enables sending, receiving, and balance inquiry via SMS and USSD protocols.

Flexible SIM Rotation: Automatically rotates SIMs based on call duration, idle time, or failure rates.

Built-in WiFi Router: Integrated WiFi allows direct connection to modems for enhanced mobility.

Company profile

Experienced TeamYears of Export ExperienceHigh Repeat Buyers ChoiceImporters and Exporters

Shenzhen Etross Telecom Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory, Trading Company CertifiedR&D Capacity: ODM Service Available CertifiedCustomization Options: Customization from Samples CertifiedExport Year: 17 Years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤6.41h

AI-Powered supplier vetting

SummaryShenzhen Etross Telecom Co., Ltd. is a Shenzhen-based limited company with 18 employees, focused on communication equipment and electronic products, including fixed wireless phones and terminals. It reports production capacity of up to 1,000 sets per day, 17 years of export experience, sample-based customization, and R&D activity including new products in the past year and ODM services. Some products are stated to have passed CE, FCC, and RoHS certification, but specific products and certificate records are not provided. Service-control documentation is weak: there are no written procedures or records for corrective actions or complaint handling, and overseas service infrastructure is absent. Financial-related records are identified for 2021–2023, but no substantive financial results are provided. No customer cases are presented.

Supplier typeThe supplier is Shenzhen Etross Telecom Co., Ltd., a combined, privately structured limited company located in Shenzhen, China, with 18 employees. Its licensed scope covers manufacturing communication equipment and electronic products, and it is not identified as part of a larger group.

CertificationsThe company states that some products have passed CE, FCC, and RoHS certification. However, the slices do not identify the certified products or provide certificate details, so the evidence supports stated certification coverage but not comprehensive verification.

After-Sales capabilityThe supplier has no written procedures or records for customer complaint handling or corrective and preventive actions. It also reports no overseas warehouse, showroom, agent, branch, or offline trade-show participation; therefore, documented and international after-sales support appears limited.

R&D capabilityThe supplier reports an R&D center with experienced engineers, new products developed during the past year, and ODM services. It does not provide an SDK and does not serve popular brands through OEM, so innovation capability is demonstrated but limited in the stated areas.

Production capacityThe supplier states production capacity of up to 1,000 sets per day, has listed production and testing equipment, and reports peak- and off-season lead times within 15 working days. Its 18-employee workforce and the absence of further capacity records limit the breadth of verification, but the stated operating capability is positive.

Customization capabilityThe supplier supports customization from samples and provides ODM services, directly indicating both sample-based customization and original design manufacturing capability. No broader customization scope or SDK support is stated.